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| 1 /* |
| 2 * Copyright 2013 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #include "gm.h" |
| 9 #include "SkDebugCanvas.h" |
| 10 #include "SkPictureFlat.h" |
| 11 |
| 12 #define WARN(msg) \ |
| 13 SkDebugf("%s:%d: %s\n", __FILE__, __LINE__, msg); |
| 14 |
| 15 namespace { |
| 16 |
| 17 // Do the commands in 'input' match the supplied pattern? Note: this is a pretty |
| 18 // heavy-weight operation since we are drawing the picture into a debug canvas |
| 19 // to extract the commands. |
| 20 bool check_pattern(SkPicture& input, const SkTDArray<DrawType> &pattern) { |
| 21 SkDebugCanvas debugCanvas(input.width(), input.height()); |
| 22 debugCanvas.setBounds(input.width(), input.height()); |
| 23 input.draw(&debugCanvas); |
| 24 |
| 25 if (pattern.count() != debugCanvas.getSize()) { |
| 26 return false; |
| 27 } |
| 28 |
| 29 for (int i = 0; i < pattern.count(); ++i) { |
| 30 if (pattern[i] != debugCanvas.getDrawCommandAt(i)->getType()) { |
| 31 return false; |
| 32 } |
| 33 } |
| 34 |
| 35 return true; |
| 36 } |
| 37 |
| 38 // construct the pattern removed by the SkPictureRecord::remove_save_layer1 |
| 39 // optimization, i.e.: |
| 40 // SAVE_LAYER |
| 41 // DRAW_BITMAP|DRAW_BITMAP_MATRIX|DRAW_BITMAP_NINE|DRAW_BITMAP_RECT_TO_REC
T |
| 42 // RESTORE |
| 43 // |
| 44 // saveLayerHasPaint - control if the saveLayer has a paint (the optimization |
| 45 // takes a different path if this is false) |
| 46 // dbmr2rHasPaint - control if the dbmr2r has a paint (the optimization |
| 47 // takes a different path if this is false) |
| 48 // colorsMatch - control if the saveLayer and dbmr2r paint colors |
| 49 // match (the optimization will fail if they do not) |
| 50 SkPicture* create_save_layer_opt_1(SkTDArray<DrawType> *preOptPattern, |
| 51 SkTDArray<DrawType> *postOptPattern, |
| 52 const SkBitmap& checkerBoard, |
| 53 bool saveLayerHasPaint, |
| 54 bool dbmr2rHasPaint, |
| 55 bool colorsMatch) { |
| 56 // Create the pattern that should trigger the optimization |
| 57 preOptPattern->setCount(5); |
| 58 (*preOptPattern)[0] = SAVE; |
| 59 (*preOptPattern)[1] = SAVE_LAYER; |
| 60 (*preOptPattern)[2] = DRAW_BITMAP_RECT_TO_RECT; |
| 61 (*preOptPattern)[3] = RESTORE; |
| 62 (*preOptPattern)[4] = RESTORE; |
| 63 |
| 64 if (colorsMatch) { |
| 65 // Create the pattern that should appear after the optimization |
| 66 postOptPattern->setCount(5); |
| 67 (*postOptPattern)[0] = SAVE; // extra save/restore added by extra draw |
| 68 (*postOptPattern)[1] = SAVE; |
| 69 (*postOptPattern)[2] = DRAW_BITMAP_RECT_TO_RECT; |
| 70 (*postOptPattern)[3] = RESTORE; |
| 71 (*postOptPattern)[4] = RESTORE; |
| 72 } else { |
| 73 // Create the pattern that appears if the optimization doesn't fire |
| 74 postOptPattern->setCount(7); |
| 75 (*postOptPattern)[0] = SAVE; // extra save/restore added by extra draw |
| 76 (*postOptPattern)[1] = SAVE; |
| 77 (*postOptPattern)[2] = SAVE_LAYER; |
| 78 (*postOptPattern)[3] = DRAW_BITMAP_RECT_TO_RECT; |
| 79 (*postOptPattern)[4] = RESTORE; |
| 80 (*postOptPattern)[5] = RESTORE; |
| 81 (*postOptPattern)[6] = RESTORE; |
| 82 } |
| 83 |
| 84 SkPicture* result = new SkPicture; |
| 85 |
| 86 // have to disable the optimizations while generating the picture |
| 87 SkCanvas* canvas = result->beginRecording(100, 100, |
| 88 SkPicture::kDisableRecordOptimizations_RecordingFlag); |
| 89 |
| 90 SkPaint saveLayerPaint; |
| 91 saveLayerPaint.setColor(0xCC000000); |
| 92 |
| 93 // saveLayer's 'bounds' parameter must be NULL for this optimization |
| 94 if (saveLayerHasPaint) { |
| 95 canvas->saveLayer(NULL, &saveLayerPaint); |
| 96 } else { |
| 97 canvas->saveLayer(NULL, NULL); |
| 98 } |
| 99 |
| 100 SkRect rect = { 10, 10, 90, 90 }; |
| 101 |
| 102 // The dbmr2r's paint must be opaque |
| 103 SkPaint dbmr2rPaint; |
| 104 if (colorsMatch) { |
| 105 dbmr2rPaint.setColor(0xFF000000); |
| 106 } else { |
| 107 dbmr2rPaint.setColor(0xFFFF0000); |
| 108 } |
| 109 |
| 110 if (dbmr2rHasPaint) { |
| 111 canvas->drawBitmapRectToRect(checkerBoard, NULL, rect, &dbmr2rPaint); |
| 112 } else { |
| 113 canvas->drawBitmapRectToRect(checkerBoard, NULL, rect, NULL); |
| 114 } |
| 115 canvas->restore(); |
| 116 |
| 117 result->endRecording(); |
| 118 |
| 119 return result; |
| 120 } |
| 121 |
| 122 // straight-ahead version that is seen in the skps |
| 123 SkPicture* create_save_layer_opt_1_v1(SkTDArray<DrawType> *preOptPattern, |
| 124 SkTDArray<DrawType> *postOptPattern, |
| 125 const SkBitmap& checkerBoard) { |
| 126 return create_save_layer_opt_1(preOptPattern, postOptPattern, checkerBoard, |
| 127 true, // saveLayer has a paint |
| 128 true, // dbmr2r has a paint |
| 129 true); // and the colors match |
| 130 } |
| 131 |
| 132 // alternate version that should still succeed |
| 133 SkPicture* create_save_layer_opt_1_v2(SkTDArray<DrawType> *preOptPattern, |
| 134 SkTDArray<DrawType> *postOptPattern, |
| 135 const SkBitmap& checkerBoard) { |
| 136 return create_save_layer_opt_1(preOptPattern, postOptPattern, checkerBoard, |
| 137 false, // saveLayer doesn't have a paint! |
| 138 true, // dbmr2r has a paint |
| 139 true); // color matching not really applicab
le |
| 140 } |
| 141 |
| 142 // alternate version that should still succeed |
| 143 SkPicture* create_save_layer_opt_1_v3(SkTDArray<DrawType> *preOptPattern, |
| 144 SkTDArray<DrawType> *postOptPattern, |
| 145 const SkBitmap& checkerBoard) { |
| 146 return create_save_layer_opt_1(preOptPattern, postOptPattern, checkerBoard, |
| 147 true, // saveLayer has a paint |
| 148 false, // dbmr2r doesn't have a paint! |
| 149 true); // color matching not really applicab
le |
| 150 } |
| 151 |
| 152 // version in which the optimization fails b.c. the colors don't match |
| 153 SkPicture* create_save_layer_opt_1_v4(SkTDArray<DrawType> *preOptPattern, |
| 154 SkTDArray<DrawType> *postOptPattern, |
| 155 const SkBitmap& checkerBoard) { |
| 156 return create_save_layer_opt_1(preOptPattern, postOptPattern, checkerBoard, |
| 157 true, // saveLayer has a paint |
| 158 true, // dbmr2r has a paint |
| 159 false); // and the colors don't match! |
| 160 } |
| 161 |
| 162 // construct the pattern removed by the SkPictureRecord::remove_save_layer2 |
| 163 // optimization, i.e.: |
| 164 // SAVE_LAYER (with NULL == bounds) |
| 165 // SAVE |
| 166 // CLIP_RECT |
| 167 // DRAW_BITMAP|DRAW_BITMAP_MATRIX|DRAW_BITMAP_NINE|DRAW_BITMAP_RECT_TO_R
ECT |
| 168 // RESTORE |
| 169 // RESTORE |
| 170 // |
| 171 // saveLayerHasPaint - control if the saveLayer has a paint (the optimization |
| 172 // takes a different path if this is false) |
| 173 // dbmr2rHasPaint - control if the dbmr2r has a paint (the optimization |
| 174 // takes a different path if this is false) |
| 175 // colorsMatch - control if the saveLayer and dbmr2r paint colors |
| 176 // match (the optimization will fail if they do not) |
| 177 SkPicture* create_save_layer_opt_2(SkTDArray<DrawType> *preOptPattern, |
| 178 SkTDArray<DrawType> *postOptPattern, |
| 179 const SkBitmap& checkerBoard, |
| 180 bool saveLayerHasPaint, |
| 181 bool dbmr2rHasPaint, |
| 182 bool colorsMatch) { |
| 183 // Create the pattern that should trigger the optimization |
| 184 preOptPattern->setCount(8); |
| 185 (*preOptPattern)[0] = SAVE; |
| 186 (*preOptPattern)[1] = SAVE_LAYER; |
| 187 (*preOptPattern)[2] = SAVE; |
| 188 (*preOptPattern)[3] = CLIP_RECT; |
| 189 (*preOptPattern)[4] = DRAW_BITMAP_RECT_TO_RECT; |
| 190 (*preOptPattern)[5] = RESTORE; |
| 191 (*preOptPattern)[6] = RESTORE; |
| 192 (*preOptPattern)[7] = RESTORE; |
| 193 |
| 194 if (colorsMatch) { |
| 195 // Create the pattern that should appear after the optimization |
| 196 postOptPattern->setCount(8); |
| 197 (*postOptPattern)[0] = SAVE; // extra save/restore added by extra draw |
| 198 (*postOptPattern)[1] = SAVE; |
| 199 (*postOptPattern)[2] = SAVE; |
| 200 (*postOptPattern)[3] = CLIP_RECT; |
| 201 (*postOptPattern)[4] = DRAW_BITMAP_RECT_TO_RECT; |
| 202 (*postOptPattern)[5] = RESTORE; |
| 203 (*postOptPattern)[6] = RESTORE; |
| 204 (*postOptPattern)[7] = RESTORE; |
| 205 } else { |
| 206 // Create the pattern that appears if the optimization doesn't fire |
| 207 postOptPattern->setCount(10); |
| 208 (*postOptPattern)[0] = SAVE; // extra save/restore added by extra draw |
| 209 (*postOptPattern)[1] = SAVE; |
| 210 (*postOptPattern)[2] = SAVE_LAYER; |
| 211 (*postOptPattern)[3] = SAVE; |
| 212 (*postOptPattern)[4] = CLIP_RECT; |
| 213 (*postOptPattern)[5] = DRAW_BITMAP_RECT_TO_RECT; |
| 214 (*postOptPattern)[6] = RESTORE; |
| 215 (*postOptPattern)[7] = RESTORE; |
| 216 (*postOptPattern)[8] = RESTORE; |
| 217 (*postOptPattern)[9] = RESTORE; |
| 218 } |
| 219 |
| 220 SkPicture* result = new SkPicture; |
| 221 |
| 222 // have to disable the optimizations while generating the picture |
| 223 SkCanvas* canvas = result->beginRecording(100, 100, |
| 224 SkPicture::kDisableRecordOptimizations_RecordingFlag); |
| 225 |
| 226 SkPaint saveLayerPaint; |
| 227 saveLayerPaint.setColor(0xCC000000); |
| 228 |
| 229 // saveLayer's 'bounds' parameter must be NULL for this optimization |
| 230 if (saveLayerHasPaint) { |
| 231 canvas->saveLayer(NULL, &saveLayerPaint); |
| 232 } else { |
| 233 canvas->saveLayer(NULL, NULL); |
| 234 } |
| 235 |
| 236 canvas->save(); |
| 237 |
| 238 SkRect rect = { 10, 10, 90, 90 }; |
| 239 canvas->clipRect(rect); |
| 240 |
| 241 // The dbmr2r's paint must be opaque |
| 242 SkPaint dbmr2rPaint; |
| 243 if (colorsMatch) { |
| 244 dbmr2rPaint.setColor(0xFF000000); |
| 245 } else { |
| 246 dbmr2rPaint.setColor(0xFFFF0000); |
| 247 } |
| 248 |
| 249 if (dbmr2rHasPaint) { |
| 250 canvas->drawBitmapRectToRect(checkerBoard, NULL, rect, &dbmr2rPaint); |
| 251 } else { |
| 252 canvas->drawBitmapRectToRect(checkerBoard, NULL, rect, NULL); |
| 253 } |
| 254 canvas->restore(); |
| 255 canvas->restore(); |
| 256 |
| 257 result->endRecording(); |
| 258 |
| 259 return result; |
| 260 } |
| 261 |
| 262 // straight-ahead version that is seen in the skps |
| 263 SkPicture* create_save_layer_opt_2_v1(SkTDArray<DrawType> *preOptPattern, |
| 264 SkTDArray<DrawType> *postOptPattern, |
| 265 const SkBitmap& checkerBoard) { |
| 266 return create_save_layer_opt_2(preOptPattern, postOptPattern, checkerBoard, |
| 267 true, // saveLayer has a paint |
| 268 true, // dbmr2r has a paint |
| 269 true); // and the colors match |
| 270 } |
| 271 |
| 272 // alternate version that should still succeed |
| 273 SkPicture* create_save_layer_opt_2_v2(SkTDArray<DrawType> *preOptPattern, |
| 274 SkTDArray<DrawType> *postOptPattern, |
| 275 const SkBitmap& checkerBoard) { |
| 276 return create_save_layer_opt_2(preOptPattern, postOptPattern, checkerBoard, |
| 277 false, // saveLayer doesn't have a paint! |
| 278 true, // dbmr2r has a paint |
| 279 true); // color matching not really applicab
le |
| 280 } |
| 281 |
| 282 // alternate version that should still succeed |
| 283 SkPicture* create_save_layer_opt_2_v3(SkTDArray<DrawType> *preOptPattern, |
| 284 SkTDArray<DrawType> *postOptPattern, |
| 285 const SkBitmap& checkerBoard) { |
| 286 return create_save_layer_opt_2(preOptPattern, postOptPattern, checkerBoard, |
| 287 true, // saveLayer has a paint |
| 288 false, // dbmr2r doesn't have a paint! |
| 289 true); // color matching not really applicab
le |
| 290 } |
| 291 |
| 292 // version in which the optimization fails b.c. the colors don't match |
| 293 SkPicture* create_save_layer_opt_2_v4(SkTDArray<DrawType> *preOptPattern, |
| 294 SkTDArray<DrawType> *postOptPattern, |
| 295 const SkBitmap& checkerBoard) { |
| 296 return create_save_layer_opt_2(preOptPattern, postOptPattern, checkerBoard, |
| 297 true, // saveLayer has a paint |
| 298 true, // dbmr2r has a paint |
| 299 false); // and the colors don't match! |
| 300 } |
| 301 |
| 302 }; |
| 303 |
| 304 |
| 305 // As our .skp optimizations get folded into the captured skps our code will |
| 306 // no longer be locally exercised. This GM manually constructs the patterns |
| 307 // our optimizations will remove to test them. It acts as both a GM and a unit |
| 308 // test |
| 309 class OptimizationsGM : public skiagm::GM { |
| 310 public: |
| 311 OptimizationsGM() { |
| 312 this->makeCheckerboard(); |
| 313 } |
| 314 |
| 315 static const int kWidth = 800; |
| 316 static const int kHeight = 800; |
| 317 |
| 318 protected: |
| 319 SkString onShortName() { |
| 320 return SkString("optimizations"); |
| 321 } |
| 322 |
| 323 SkISize onISize() { return SkISize::Make(kWidth, kHeight); } |
| 324 |
| 325 typedef SkPicture* (*PFCreateOpt)(SkTDArray<DrawType> *preOptPattern, |
| 326 SkTDArray<DrawType> *postOptPattern, |
| 327 const SkBitmap& checkerBoard); |
| 328 |
| 329 virtual void onDraw(SkCanvas* canvas) { |
| 330 |
| 331 PFCreateOpt gOpts[] = { |
| 332 create_save_layer_opt_1_v1, |
| 333 create_save_layer_opt_1_v2, |
| 334 create_save_layer_opt_1_v3, |
| 335 create_save_layer_opt_1_v4, |
| 336 create_save_layer_opt_2_v1, |
| 337 create_save_layer_opt_2_v2, |
| 338 create_save_layer_opt_2_v3, |
| 339 create_save_layer_opt_2_v4, |
| 340 }; |
| 341 |
| 342 SkTDArray<DrawType> prePattern, postPattern; |
| 343 int xPos = 0, yPos = 0; |
| 344 |
| 345 for (size_t i = 0; i < SK_ARRAY_COUNT(gOpts); ++i) { |
| 346 SkAutoTUnref<SkPicture> pre((*gOpts[i])(&prePattern, &postPattern, f
Checkerboard)); |
| 347 |
| 348 if (!(check_pattern(*pre, prePattern))) { |
| 349 WARN("Pre optimization pattern mismatch"); |
| 350 SkASSERT(0); |
| 351 } |
| 352 |
| 353 canvas->save(); |
| 354 canvas->translate(SkIntToScalar(xPos), SkIntToScalar(yPos)); |
| 355 pre->draw(canvas); |
| 356 xPos += pre->width(); |
| 357 canvas->restore(); |
| 358 |
| 359 // re-render the 'pre' picture and thus 'apply' the optimization |
| 360 SkAutoTUnref<SkPicture> post(new SkPicture); |
| 361 |
| 362 SkCanvas* recordCanvas = post->beginRecording(pre->width(), pre->hei
ght()); |
| 363 |
| 364 pre->draw(recordCanvas); |
| 365 |
| 366 post->endRecording(); |
| 367 |
| 368 if (!(check_pattern(*post, postPattern))) { |
| 369 WARN("Post optimization pattern mismatch"); |
| 370 SkASSERT(0); |
| 371 } |
| 372 |
| 373 canvas->save(); |
| 374 canvas->translate(SkIntToScalar(xPos), SkIntToScalar(yPos)); |
| 375 post->draw(canvas); |
| 376 xPos += post->width(); |
| 377 canvas->restore(); |
| 378 |
| 379 if (xPos >= kWidth) { |
| 380 // start a new line |
| 381 xPos = 0; |
| 382 yPos += post->height(); |
| 383 } |
| 384 |
| 385 // TODO: we could also render the pre and post pictures to bitmaps |
| 386 // and manually compare them in this method |
| 387 } |
| 388 } |
| 389 |
| 390 private: |
| 391 void makeCheckerboard() { |
| 392 static const unsigned int kCheckerboardWidth = 16; |
| 393 static const unsigned int kCheckerboardHeight = 16; |
| 394 |
| 395 fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, |
| 396 kCheckerboardWidth, kCheckerboardHeight); |
| 397 fCheckerboard.allocPixels(); |
| 398 SkAutoLockPixels lock(fCheckerboard); |
| 399 for (unsigned int y = 0; y < kCheckerboardHeight; y += 2) { |
| 400 SkPMColor* scanline = fCheckerboard.getAddr32(0, y); |
| 401 for (unsigned int x = 0; x < kCheckerboardWidth; x += 2) { |
| 402 *scanline++ = 0xFFFFFFFF; |
| 403 *scanline++ = 0xFF000000; |
| 404 } |
| 405 scanline = fCheckerboard.getAddr32(0, y + 1); |
| 406 for (unsigned int x = 0; x < kCheckerboardWidth; x += 2) { |
| 407 *scanline++ = 0xFF000000; |
| 408 *scanline++ = 0xFFFFFFFF; |
| 409 } |
| 410 } |
| 411 } |
| 412 |
| 413 SkBitmap fCheckerboard; |
| 414 |
| 415 typedef skiagm::GM INHERITED; |
| 416 }; |
| 417 |
| 418 ////////////////////////////////////////////////////////////////////////////// |
| 419 |
| 420 DEF_GM( return new OptimizationsGM; ) |
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